DETERMINATION OF THE AMINO-ACID-SEQUENCE OF CYSTINE-CONTAINING PEPTIDES BY TANDEM MASS-SPECTROMETRY

被引:8
|
作者
DESPEYROUX, D [1 ]
BORDASNAGY, J [1 ]
JENNINGS, KR [1 ]
机构
[1] UNIV WARWICK,DEPT CHEM,COVENTRY CV4 7AL,W MIDLANDS,ENGLAND
关键词
D O I
10.1002/rcm.1290050404
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A method has been developed for the determination of the amino-acid sequence of a cyclic peptide containing cystine. It is based on the reduction of the peptide in a reductive matrix prior to ionization by fast-atom bombardment. The amino-acid sequence of the resulting linear peptide is then determined by tandem mass spectrometry from the spectrum produced by the collision-induced decomposition of the [M + H]+ ion of the peptide.
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页码:156 / 159
页数:4
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